Mazda b2200 dome light wont work when doors open its a king

I have a 1992 mazdab2200 and when I open the doors the dome lights do not turn on I took out and cleaned the door switches its not those. The switch to turn them on manually works but in the on when doors open mode nothing the truck was doing this a while but randomly would work what is broke? Iv never been more stumped in my life ever!!! The floor boards are pretty beat but I don't believe it caused this I'm thinking under the hood a ground is loose please give your opinion as this is driving me crazy the frame and floor bords have 35 percent remains litterally! Maybe a wire got rotted.i have a 98 frontier puts these mazdas to shamr but reliablity there eqwual besides rust that is nissan!

I believe theres a separate wire for that, it could be a short or rotten through like you said.

Did you try bypassing the door switch and do a straight to chassis ground connection?

I assume it's a Cab Plus since you mentioned "king" having said that, both dome lights have the same symptom?